Square Marine Porthole

✅ Materials

Frame: Marine-grade anodized aluminum alloy—lightweight, resistant to salt spray and corrosion, and highly durable against rust in maritime environments.

Viewing Panel: Thickened tinted acrylic (PMMA)—impact-resistant, shatterproof, UV-protected, and effective at blocking light and heat.

Seals: High-density rubber gaskets—ensure a tight, watertight, and airtight seal.

Hardware: Dual stainless steel hydraulic struts, engineering-plastic locking handles with red safety latches, and stainless steel hinges and fasteners—all resistant to seawater-induced degradation.

✅ Structure

A top-hinged, square-shaped porthole/hatch featuring dual hydraulic struts for symmetrical support. Equipped with two locking handles—each with a safety latch—for secure, dual-sided closure. Includes hinges and a split-flange base, with pre-drilled mounting holes and integrated sealing grooves. When opened, the hatch is held firmly in place by the two struts; when closed, it is compressed to create a watertight seal. Compared to single-strut models, this design offers superior stability and even load distribution, making it ideal for larger-sized units.

✅ Applications

Designed for yachts, vessels, and RVs to provide natural light, ventilation, viewing, emergency egress, and access to compartments. Functions as a watertight hatch, facilitating airflow, illumination, and passage; also suitable as a replacement for aging or worn-out marine windows. ✅ Product Features

1. Large-format square design with dual-side locking for balanced stress distribution; the larger dimensions ensure enhanced stability.

2. Anodized aluminum frame, resistant to seawater and salt-spray corrosion—ideal for long-term marine use.

3. Tinted acrylic panel: shatter-resistant for safety, blocks UV rays, and helps keep cabin temperatures lower.

4. Dual hydraulic support struts for effortless opening and stable positioning, preventing the hatch cover from falling unexpectedly.

5. Dual handles equipped with red safety latches ensure a secure lock and prevent accidental opening, offering superior safety.

6. Thickened rubber sealing strips provide excellent watertight performance, effectively preventing leaks.

7. Flange base with pre-drilled mounting holes for easy installation; available in various sizes with customization options.

✅ Applications

Suitable for installation on large yachts, fishing vessels, work boats, sailboats, RVs, travel trailers, floating structures, and bulkheads on offshore operational platforms.